خِزَانَةٌ

A small chamber within a large chamber; (TA in article خدع;) [a closet; also called in the present day ↓ خَزْنَةٌ: and a cupboard:] a place in which things are reposited, stowed, laid up, kept, preserved, or guarded; a repository; [a magazine; a store-room;] (JK, Msb, K, TA;) and so ↓ مَخْزَنٌ, (S, K,) with fet-h to the ز, (S,) like مَقْعَدٌ, (K,) or ↓ مَخْزِنٌ, like مَجْلِسٌ, [which is irreg., as the aorist of خَزَنَ is يَخْزُنُ:] (Msb:) the former should not be pronounced with fet-h [i. e. خَزَانَة], (K,) as the vulgar are given to pronounce it: (TA:) the plural of the former is خَزَايءِنُ; (S, Msb;) and that of مخزن is مَخَازِنُ. (Msb, TA.) [Hence, خِزَانَةُ كُتُبٍ A library; and a bookcase. And خِزَانَةُ سِلَاحٍ An armoury.]

And (tropical:) The heart; (K, TA;) because the secret is concealed in it. (TA.) See an example voce خَازِنٌ.

-A2- Also The occupation, (JK, TA,) and act, (K, TA,) of the خَازِن. (JK, K, TA.)